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EP1459857B1 - Hand tool with adjustable rotary cutter housing - Google Patents

Hand tool with adjustable rotary cutter housing Download PDF

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Publication number
EP1459857B1
EP1459857B1 EP20040006191 EP04006191A EP1459857B1 EP 1459857 B1 EP1459857 B1 EP 1459857B1 EP 20040006191 EP20040006191 EP 20040006191 EP 04006191 A EP04006191 A EP 04006191A EP 1459857 B1 EP1459857 B1 EP 1459857B1
Authority
EP
European Patent Office
Prior art keywords
sleeve
hand tool
intermediate element
pin
accordance
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP20040006191
Other languages
German (de)
French (fr)
Other versions
EP1459857A1 (en
Inventor
Eberhard Berhalter
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Individual
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Individual
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27F—DOVETAILED WORK; TENONS; SLOTTING MACHINES FOR WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES
    • B27F5/00—Slotted or mortised work
    • B27F5/02—Slotting or mortising machines tools therefor
    • B27F5/023—Portable plate joiners
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q16/00—Equipment for precise positioning of tool or work into particular locations not otherwise provided for
    • B23Q16/02—Indexing equipment
    • B23Q16/04—Indexing equipment having intermediate members, e.g. pawls, for locking the relatively movable parts in the indexed position

Definitions

  • the invention relates to a hand tool according to the preamble of claim 1.
  • a hand tool according to the preamble of claim 1.
  • Such a device is made US 4,924,635 known.
  • the axis of rotation of the milling disc is perpendicular to the central axis of the handle, on which the manual device is to operate manually. Furthermore, the outlet opening of the milling disc, which is provided in the housing of the hand tool, on the handle - with respect to the axis of rotation - arranged opposite.
  • a disadvantage of this hand tool is to be considered that the handle of the hand tool is firmly attached to the housing in which the cutter disk is arranged.
  • Milling disc be changeable and at the same time it must be ensured that the locking of the cover on the housing is reliable.
  • a lever arm which can be moved against the force of a spring which is supported on the housing and the lever arm.
  • a spring which is supported on the housing and the lever arm.
  • a plurality of discs and spring springs are provided, which are supported in ring segments, which are incorporated in the circumference of the milling disc.
  • the object of the invention is to improve a locking device.
  • the handle can be pivoted about the rotational axis of the milling disc in different angular positions and locked in this, so that a user individually determines in which holding position for which activities to be performed the handle is to align, with respect to the outlet opening the milling disc.
  • FIG. 1 a hand tool 1 for the machining of workpieces is shown, which consists of a housing 2 and a motor 3 for driving a milling disc 4 arranged in the housing 2.
  • the motor 3 and the milling disc 4 are drivingly connected to each other via a drive shaft 5.
  • the cutter disk 4 is at the Drive shaft 5 is fixed by means of a fastening screw 6.
  • two shear pins 7 are provided on the drive shaft, which pass through corresponding through holes in the milling disc 4.
  • the manual tool 1 is operated manually via a handle 8, which is arranged perpendicular to the axis of rotation 9 of the cutter disk 4.
  • a handle 8 which is arranged perpendicular to the axis of rotation 9 of the cutter disk 4.
  • an outlet opening 10 is incorporated therein.
  • a locking device 21 which is explained in more detail below, used.
  • the locking device 21 consists of an intermediate member 12 which is fixedly connected to the housing 2 by means of schematically illustrated screws.
  • a receiving bore 19 is incorporated, in which a sleeve 11 is inserted.
  • the sleeve 11 completely surrounds the drive shaft 5.
  • a recess 14 is circumferentially provided in the sleeve 11, in the two holding jaws 13, which are arranged in alignment with each other opposite, engage and prevent movement of the sleeve 11 in the direction of the axis of rotation 9.
  • the two holding jaws 13 are detachably connected to the intermediate member 12, so that they can be removed from the intermediate member 12 for disassembly or assembly of the sleeve 11.
  • the sleeve 11 is pivotable relative to the intermediate member 12 and the holding jaws 13 together with the components mounted in it, namely the drive shaft 5 and its bearing, not shown.
  • a plurality of holes 15 are incorporated into the sleeve 11.
  • a pin 16 cooperates, which is held axially movable in one of the holding jaws 13 in a bore. Consequently, the pin 16 is perpendicular to the axis of rotation 9 in the holding jaws 13 movable and aligned with the holes 15.
  • an angle lever 17 as this is in particular, is at this end facing away from the sleeve 11 FIG. 3 can be seen, provided.
  • the angle lever 17 is supported by means of a bearing 18 on the housing 2.
  • the pin 16 releases from the respective bore 15 of the sleeve 11 and thus releases the sleeve 11 so that it can be aligned, for example via the handle 8, in different angular positions .
  • Such a pivoting of the sleeve 11 automatically causes the handle 8 with respect to the axis of rotation 9 and consequently also with respect to the outlet opening 10 can be converted into different angular positions.
  • the selected angular position of the handle 8 is not, for example, by the manually applied force is adjusted during use of the hand tool 1, the locking device 21 is actuated such that the angle lever 17 can snap back the pin 16 in a bore 25, so that the sleeve 11 is locked by the pin 16.
  • the pin 16 may be supported by a thread in the housing 2, so that by turning the threaded pin 16, a locking of the sleeve 11 can be effected because between the pin 16 and the sleeve 11, a frictional operative connection is formed ,
  • the locking device 21 has a relation to the in FIG. 1 illustrated pin 16 differently shaped pin 16 ', on which an aligned in the direction of the intermediate member 12 retaining lug 18 is mounted, which cooperates with the intermediate member 12 such that by operating the pin 16' in Direction of the axis of rotation of the cutter disk 4, the positive-locking operative connection between the retaining lug 18 and the intermediate member 12 is released, so that the sleeve 11 is rotatable about the axis of rotation of the cutter disk 4.
  • a plurality of recesses are incorporated, in which the retaining lug 18 of the pin 16 'engage and are thus locked by the intermediate member 12, so that the sleeve 11 is fixed.
  • pin 16 ' is mounted on the housing 2 and extends parallel to the axis of rotation of the milling disc 4, so that the pin 16' acts perpendicular to the intermediate member 12.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Milling Processes (AREA)
  • Holding Or Fastening Of Disk On Rotational Shaft (AREA)

Description

Die Erfindung bezieht sich auf ein Handarbeitsgerät gemäß dem Oberbegriff des Anspruchs 1. Eine solche Vorrichtung ist aus US 4 924 635 bekannt.The invention relates to a hand tool according to the preamble of claim 1. Such a device is made US 4,924,635 known.

Aus der US 5,657,804 ist ein solches Handarbeitsgeräte bekannt. Die Rotationsachse der Frässcheibe verläuft dabei senkrecht zu der Mittelachse des Haltegriffes, an dem das Handarbeitsgerät manuell zu bedienen ist. Des Weiteren ist die Austrittsöffnung der Frässcheibe, die in dem Gehäuse des Handarbeitsgerätes vorgesehen ist, auf der dem Haltegriff - in bezug auf die Rotationsachse - gegenüberliegend angeordnet.From the US 5,657,804 is such a hand tools known. The axis of rotation of the milling disc is perpendicular to the central axis of the handle, on which the manual device is to operate manually. Furthermore, the outlet opening of the milling disc, which is provided in the housing of the hand tool, on the handle - with respect to the axis of rotation - arranged opposite.

Als nachteilig bei diesem Handarbeitsgerät ist anzusehen, dass der Haltegriff des Handarbeitsgerätes fest an dem Gehäuse, in dem die Frässcheibe angeordnet ist, befestigt ist.A disadvantage of this hand tool is to be considered that the handle of the hand tool is firmly attached to the housing in which the cutter disk is arranged.

Es ist daher Aufgabe der Erfindung, ein Handarbeitsgerät der eingangs genannten Gattung derart weiterzubilden, dass der Haltegriff des Handarbeitsgerätes um die Rotationsachse der Frässcheibe in unterschiedliche Winkelpositionen feststellbar ist, um für jeden Benutzer des Handarbeitsgerätes individuell die optimale Arbeitsposition des Haltegriffes in bezug auf die Austrittsöffnung der Frässcheibe einstellen zu können.It is therefore an object of the invention to develop a hand tool of the type mentioned in such a way that the handle of the hand tool to the rotational axis of the milling disc in different angular positions can be determined to individually for each user of the hand tool the optimal working position of the handle with respect to the outlet opening of the To be able to adjust the milling disc.

Frässcheibe veränderbar sein und gleichzeitig ist zu gewährleisten, dass die Arretierung der Abdeckhaube am Gehäuse zuverlässig erfolgt.Milling disc be changeable and at the same time it must be ensured that the locking of the cover on the housing is reliable.

Zur Verstellung der Abdeckhaube ist ein Hebelarm vorgesehen, der gegen die Kraft einer Feder die am Gehäuse und am Hebelarm abgestützt ist, bewegt werden kann. Durch Anheben des Hebelarmes wird nämlich ein mit diesem verbundener Stift aus einer Bohrung, die in die Abdeckhaube eingearbeitet ist, bewegt, so dass die Abdeckhaube die am Antriebsflansch drehbar gelagert ist, verstellt werden kann.To adjust the cover, a lever arm is provided, which can be moved against the force of a spring which is supported on the housing and the lever arm. By lifting the lever arm namely a connected to this pin from a hole which is incorporated in the cover, moves, so that the cover which is rotatably mounted on the drive flange, can be adjusted.

Wird die Kraft am Hebelarm verringert, drückt die Feder den Stift in eine weitere Bohrung der Abdeckhaube, so dass diese festgesetzt ist.When the force on the lever arm is reduced, the spring pushes the pin into another hole in the cover, so that it is fixed.

Um ein axiales Verschieben der Bauteile zu verhindern, sind mehrere Scheiben und Springfedern vorgesehen, die sich in Ringsegmenten abstützen, die in den Umfang der Frässcheibe eingearbeitet sind.In order to prevent axial displacement of the components, a plurality of discs and spring springs are provided, which are supported in ring segments, which are incorporated in the circumference of the milling disc.

Aufgabe der Erfindung ist eine Arretiervorrichtung zu verbessern.The object of the invention is to improve a locking device.

Diese Aufgabe wird erfindungsgemäß durch die Merkmale des Anspruchs 1 gelöst.This object is achieved by the features of claim 1.

Vorteilhafte Weiterbildungen der Erfindung ergeben sich aus den Merkmalen der Unteransprüche.Advantageous developments of the invention will become apparent from the features of the dependent claims.

Es ist besonders vorteilhaft, dass der Haltegriff um die Rotationsachse der Frässcheibe in unterschiedliche Winkelpositionen verschwenkt und in diesen arretiert werden kann, so dass ein Benutzer individuell festlegt, in welche Halteposition für welche vorzunehmenden Tätigkeiten der Haltegriff auszurichten ist, und zwar in bezug auf die Austrittsöffnung der Frässcheibe.It is particularly advantageous that the handle can be pivoted about the rotational axis of the milling disc in different angular positions and locked in this, so that a user individually determines in which holding position for which activities to be performed the handle is to align, with respect to the outlet opening the milling disc.

In der Zeichnung sind zwei erfindungsgemäße Ausführungsbeispiele dargestellt, die nachfolgend näher erläutert werden. Im Einzelnen zeigt:

Figur 1
eine erste Ausführungsvariante eines Handarbeitsgeräts mit einem Gehäuse, in dem eine Frässcheibe rotierend angeordnet ist, im Schnitt,
Figur 2
eine zweite Ausführungsvariante eines Handarbeitsgeräts mit einem Gehäuse, in dem eine Frässcheibe rotierend angeordnet ist, im Schnitt, und
Figur 3
das Handarbeitsgerät gemäß Figur 1, in Draufsicht.
In the drawing, two embodiments of the invention are shown, which are explained in more detail below. In detail shows:
FIG. 1
a first embodiment of a manual working device with a housing in which a milling disc is arranged to rotate, in section,
FIG. 2
a second embodiment of a hand tool with a housing in which a milling disc is arranged to rotate, in section, and
FIG. 3
the hand tool according to FIG. 1 , in top view.

In Figur 1 ist ein Handarbeitsgerät 1 zur Bearbeitung von Werkstücken dargestellt, das aus einem Gehäuse 2 und aus einem Motor 3 für den Antrieb einer in dem Gehäuse 2 angeordneten Frässcheibe 4 besteht. Der Motor 3 und die Frässcheibe 4 sind trieblich über eine Antriebswelle 5 miteinander verbunden. Die Frässcheibe 4 ist an der Antriebswelle 5 mittels einer Befestigungsschraube 6 befestigt. Zur Kraftübertragung sind an der Antriebswelle 5 zwei Scherstifte 7 vorgesehen, die entsprechende Durchgangsbohrungen in der Frässcheibe 4 durchgreifen.In FIG. 1 a hand tool 1 for the machining of workpieces is shown, which consists of a housing 2 and a motor 3 for driving a milling disc 4 arranged in the housing 2. The motor 3 and the milling disc 4 are drivingly connected to each other via a drive shaft 5. The cutter disk 4 is at the Drive shaft 5 is fixed by means of a fastening screw 6. For power transmission 5, two shear pins 7 are provided on the drive shaft, which pass through corresponding through holes in the milling disc 4.

Das Handarbeitsgerät 1 wird manuell über einen Haltegriff 8 bedient, der senkrecht zu der Rotationsachse 9 der Frässcheibe 4 angeordnet ist. Um die Frässcheibe 4 aus dem Gehäuse 2 verfahren zu können, ist in diesem eine Austrittsöffnung 10 eingearbeitet.The manual tool 1 is operated manually via a handle 8, which is arranged perpendicular to the axis of rotation 9 of the cutter disk 4. In order to be able to move the milling disk 4 out of the housing 2, an outlet opening 10 is incorporated therein.

Um den Haltegriff 8 des Handarbeitsgerätes 1 gegenüber der Rotationsachse 9 der Frässcheibe 4 in unterschiedliche Winkelpositionen ausrichten zu können, ist in dem dem Haltegriff 8 zugewandten Seite des Gehäuses 2 eine Arretiervorrichtung 21, die nachfolgend näher erläutert wird, eingesetzt.In order to align the handle 8 of the hand tool 1 relative to the axis of rotation 9 of the cutter disk 4 in different angular positions, in the handle 8 side facing the housing 2, a locking device 21, which is explained in more detail below, used.

Die Arretiervorrichtung 21 besteht aus einem Zwischenglied 12, das an dem Gehäuse 2 mittels schematisch dargestellter Schrauben fest verbunden ist. In dem Zwischenglied 12 ist eine Aufnahmebohrung 19 eingearbeitet, in die eine Hülse 11 eingeführt ist. Die Hülse 11 umschließt die Antriebswelle 5 vollständig. Des Weiteren ist in die Hülse 11 umlaufend eine Ausnehmung 14 vorgesehen, in die zwei Haltebacken 13, die fluchtend gegenüberliegend zueinander angeordnet sind, eingreifen und eine Bewegung der Hülse 11 in Richtung der Rotationsachse 9 verhindern. Die beiden Haltebacken 13 sind lösbar mit dem Zwischenglied 12 verbunden, so dass diese von dem Zwischenglied 12 zur Demontage bzw. Montage der Hülse 11 abgenommen werden können.The locking device 21 consists of an intermediate member 12 which is fixedly connected to the housing 2 by means of schematically illustrated screws. In the intermediate member 12, a receiving bore 19 is incorporated, in which a sleeve 11 is inserted. The sleeve 11 completely surrounds the drive shaft 5. Furthermore, a recess 14 is circumferentially provided in the sleeve 11, in the two holding jaws 13, which are arranged in alignment with each other opposite, engage and prevent movement of the sleeve 11 in the direction of the axis of rotation 9. The two holding jaws 13 are detachably connected to the intermediate member 12, so that they can be removed from the intermediate member 12 for disassembly or assembly of the sleeve 11.

Die Hülse 11 ist zusammen mit den in ihr gelagerten Bauteilen, nämlich der Antriebswelle 5 und deren nicht dargestelltes Lager, relativ gegenüber dem Zwischenglied 12 und den Haltebacken 13 verschwenkbar. Zur Befestigung und Halterung der Hülse 11 um die Rotationsachse 9 sind in die Hülse 11 eine Vielzahl von Bohrungen 15 eingearbeitet.The sleeve 11 is pivotable relative to the intermediate member 12 and the holding jaws 13 together with the components mounted in it, namely the drive shaft 5 and its bearing, not shown. For attachment and retention of the sleeve 11 about the axis of rotation 9 a plurality of holes 15 are incorporated into the sleeve 11.

Mit den Bohrungen 15 wirkt ein Stift 16 zusammen, der in einem der Haltebacken 13 in einer Bohrung axial beweglich gehalten ist. Folglich ist der Stift 16 senkrecht gegenüber der Rotationsachse 9 in dem Haltebacken 13 beweglich und fluchtend zu den Bohrungen 15 angeordnet.With the holes 15, a pin 16 cooperates, which is held axially movable in one of the holding jaws 13 in a bore. Consequently, the pin 16 is perpendicular to the axis of rotation 9 in the holding jaws 13 movable and aligned with the holes 15.

Zur Betätigung des Stiftes 16 sind an diesem der Hülse 11 abgewandten Ende ein Winkelhebel 17, wie dies insbesondere Figur 3 zu entnehmen ist, vorgesehen. Der Winkelhebel 17 ist mittels eines Lagers 18 an dem Gehäuse 2 abgestützt.To actuate the pin 16, an angle lever 17, as this is in particular, is at this end facing away from the sleeve 11 FIG. 3 can be seen, provided. The angle lever 17 is supported by means of a bearing 18 on the housing 2.

Wird nunmehr der Winkelhebel 17 in Richtung der Rotationsachse 9 bewegt, so löst sich der Stift 16 aus der jeweiligen Bohrung 15 der Hülse 11 und gibt demnach die Hülse 11 frei, so dass diese, beispielsweise über den Haltegriff 8, in unterschiedliche Winkelpositionen ausgerichtet werden kann. Eine derartige Verschwenkung der Hülse 11 bewirkt automatisch, dass auch der Haltegriff 8 gegenüber der Rotationsachse 9 und folglich auch gegenüber der Austrittsöffnung 10 in unterschiedliche Winkelpositionen überführt werden kann.Now, if the angle lever 17 is moved in the direction of the axis of rotation 9, the pin 16 releases from the respective bore 15 of the sleeve 11 and thus releases the sleeve 11 so that it can be aligned, for example via the handle 8, in different angular positions , Such a pivoting of the sleeve 11 automatically causes the handle 8 with respect to the axis of rotation 9 and consequently also with respect to the outlet opening 10 can be converted into different angular positions.

Damit die ausgewählte Winkelposition des Haltegriffes 8 während des Einsatzes des Handarbeitsgerätes 1 nicht, beispielsweise durch die manuell aufgebrachte Kraft, verstellt wird, ist die Arretiervorrichtung 21 derart zu betätigen, dass der Winkelhebel 17 den Stift 16 wieder in eine Bohrung 25 zurückschnappen lässt, so dass die Hülse 11 von dem Stift 16 arretiert ist.Thus, the selected angular position of the handle 8 is not, for example, by the manually applied force is adjusted during use of the hand tool 1, the locking device 21 is actuated such that the angle lever 17 can snap back the pin 16 in a bore 25, so that the sleeve 11 is locked by the pin 16.

Anstatt des Winkelhebels 17 kann der Stift 16 auch mittels eines Gewinde in dem Gehäuse 2 abgestützt sein, so dass durch Verdrehen des Gewinde-Stiftes 16 eine Arretierung der Hülse 11 bewirkt werden kann, da zwischen dem Stift 16 und der Hülse 11 eine reibschlüssige Wirkverbindung entsteht. Die in den Figuren 1 und 2 gezeigte Wirkverbindung zwischen dem Stift 16 und der Hülse 11 ist dagegen formschlüssig.Instead of the angle lever 17, the pin 16 may be supported by a thread in the housing 2, so that by turning the threaded pin 16, a locking of the sleeve 11 can be effected because between the pin 16 and the sleeve 11, a frictional operative connection is formed , The in the FIGS. 1 and 2 shown active connection between the pin 16 and the sleeve 11, however, is positively.

In Figur 2 weist die Arretiervorrichtung 21 einen gegenüber dem in Figur 1 dargestellten Stift 16 andersartig ausgebildeten Stift 16' auf, an dem eine in Richtung des Zwischengliedes 12 ausgerichtete Haltenase 18 angebracht ist, die mit dem Zwischenglied 12 derart zusammenwirkt, dass durch Betätigen des Stiftes 16' in Richtung der Rotationsachse der Frässcheibe 4 die formschlüssige Wirkverbindung zwischen der Haltenase 18 und dem Zwischenglied 12 gelöst wird, so dass die Hülse 11 um die Rotationsachse der Frässcheibe 4 verdrehbar ist. In das Zwischenglied 12 sind eine Vielzahl von Ausnehmungen eingearbeitet, in die die Haltenase 18 des Stiftes 16' eingreifen und folglich durch das Zwischenglied 12 arretiert sind, so dass die Hülse 11 festgelegt ist.In FIG. 2 the locking device 21 has a relation to the in FIG. 1 illustrated pin 16 differently shaped pin 16 ', on which an aligned in the direction of the intermediate member 12 retaining lug 18 is mounted, which cooperates with the intermediate member 12 such that by operating the pin 16' in Direction of the axis of rotation of the cutter disk 4, the positive-locking operative connection between the retaining lug 18 and the intermediate member 12 is released, so that the sleeve 11 is rotatable about the axis of rotation of the cutter disk 4. In the intermediate member 12, a plurality of recesses are incorporated, in which the retaining lug 18 of the pin 16 'engage and are thus locked by the intermediate member 12, so that the sleeve 11 is fixed.

Es ist auch denkbar, dass der Stift 16' an dem Gehäuse 2 angebracht ist und parallel zu der Rotationsachse der Frässcheibe 4 verläuft, so dass der Stift 16' senkrecht auf das Zwischenglied 12 einwirkt.It is also conceivable that the pin 16 'is mounted on the housing 2 and extends parallel to the axis of rotation of the milling disc 4, so that the pin 16' acts perpendicular to the intermediate member 12.

Der Stift 16' wird gegen die Kraft einer Feder 19 betätigt, die sich an der Hülse 11 abstützt. Zwischen dieser und dem Zwischenglied 12 ist der Stift 16' gehalten.The pin 16 'is actuated against the force of a spring 19, which is supported on the sleeve 11. Between this and the intermediate member 12 of the pin 16 'is held.

Claims (8)

  1. A hand tool (1) with a cutting disc (4) arranged in a housing (2) of the hand tool (1) and with a drive shaft (5) held in a sleeve (11) that is in a driving connection with a motor (3) of the hand tool (1) and with the cutting disc (4), in which case the sleeve (11) is guided in an intermediate element (12) firmly attached in the direction of the drive shaft (5) on the housing (2) and the sleeve (11) is held in this intermediate element (12) in a rotating arrangement, and in which case the sleeve (11) can be secured by a locking device (21) relative to the intermediate element (12) in different angle positions,
    characterised in that,
    the locking device (21) and the intermediate element (12) or the locking device (21) and the sleeve (11) form a common component, that the intermediate element (12) has an accommodation hole (19) worked into it with the sleeve (11) inserted in the hole (19), that the sleeve (11) has a circumferential opening (14) provided in it, into which at least one holding jaw 813) engages, by means of which a movement of the sleeve (11) in the direction of the axis of rotation (9) of the drive shaft (5) is prevented, and that the corresponding holding jaw (13) is connected in a releasable arrangement with the intermediate element (12) in such a way that the holding jaw (13) can be removed from the intermediate element (12) for removal or installation of the sleeve (11).
  2. The hand tool in accordance with Claim 1,
    characterised in that,
    the locking device (21) comprises a pin (16), bolt, rocker or the like supported on the intermediate element (12) or on the housing, which is in a friction or force-locking connection with the sleeve (11) or the intermediate element (12).
  3. The hand tool in accordance with Claim 2,
    characterised in that,
    a plurality of holes (15) is worked into the sleeve (11) in the circumferential direction of the sleeve (11), and the pin (16) engages in them.
  4. The hand tool in accordance with Claim 1,
    characterised in that,
    each pair of holding jaws (13) is arranged diametrically opposite to one another.
  5. The hand tool in accordance with Claim 1,
    characterised in that,
    a passage hole (20) is worked into one of the holding jaws (13), that the pin (16) of the locking device (21) passes through the passage hole (20) and that the pin (16) acts on the outside surface of the sleeve (11).
  6. The hand tool in accordance with Claim 1,
    characterised in that,
    the side of the pin (16) facing away from the sleeve (11) is in an active connection with a rocker, with an angle lever (17), with a spring or the like.
  7. The hand tool in accordance with Claim 6,
    characterised in that,
    the rocker or the angle lever (17) is supported on the housing (2) or on one of the holding jaws (13) in a swivelling arrangement.
  8. The hand tool in accordance with Claim 5,
    characterised in that,
    the passage hole (20) is provided with a thread by means of which a clamping screw which acts on the surface of the sleeve (11) is held.
EP20040006191 2003-03-19 2004-03-16 Hand tool with adjustable rotary cutter housing Expired - Lifetime EP1459857B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20304448U DE20304448U1 (en) 2003-03-19 2003-03-19 Hand tool
DE20304448U 2003-03-19

Publications (2)

Publication Number Publication Date
EP1459857A1 EP1459857A1 (en) 2004-09-22
EP1459857B1 true EP1459857B1 (en) 2013-07-24

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Application Number Title Priority Date Filing Date
EP20040006191 Expired - Lifetime EP1459857B1 (en) 2003-03-19 2004-03-16 Hand tool with adjustable rotary cutter housing

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EP (1) EP1459857B1 (en)
DE (1) DE20304448U1 (en)
ES (1) ES2432352T3 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005021212B4 (en) 2005-05-07 2018-05-09 Eberhard Berhalter Hand tool
DE202006003880U1 (en) * 2006-03-11 2006-05-11 Berhalter, Eberhard Hand tool

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2741282A (en) * 1954-09-02 1956-04-10 Merlin A Wieting Adjustable guard and depth gauge for a power operated disc saw
DE3744219A1 (en) * 1987-12-24 1989-07-06 Fein C & E HAND GRINDING MACHINE WITH ADJUSTABLE PROTECTIVE COVER
SE9201990L (en) * 1992-06-29 1993-12-30 Atlas Copco Tools Ab Pneumatic rotary grinder
US5637035A (en) * 1995-06-28 1997-06-10 Milwaukee Electric Tool Corporation Adjustable guard arrangement for power tool

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Publication number Publication date
ES2432352T3 (en) 2013-12-02
DE20304448U1 (en) 2003-06-12
EP1459857A1 (en) 2004-09-22

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